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Electronics Engineering
Electronics Engineering is a branch of engineering that deals with practical applications of electronic components, devices, systems, or equipment. Electronics are devices that operate on low voltage sources, as in electron tubes, transistors, integrated circuits, and printed circuit boards and use electricity as part of its driving force.
24,372 Questions
What special process is required before handling electronic circuit boards or ICs?
discharging of static electricity from body, work surface, tools, etc. even a couple hundred volts of static electricity accidentally discharged through a part can destroy it or damage it enough to cause a failure later.
Series circuit is a circuit that has only one path for volage flow?
No, that is a paralel circuit. a series circuit has two paths
Ramp voltage is a voltage that can be steadily increasing or decreasing.
What is the forward biased knee voltage for a 1n4001 silicon diode?
A; The 1N4xxx series of rectifier diodes are specified as 1 amp forward conduction. the last number signify the maxi mun reverse voltage it can sustain without breakdown.
What is the symbol for a voltmeter?
In schematic diagrams for technicians:
a circle with a V inside
- or -
a circle with a traditional analog meter pointer inside and the voltage or the function wirtten beside the symbol.
In engineering or scientific experiement diagrams, a circle with an E inside.
Expect to find several variations of this symbol throughout your career..
What does the term PIV for a diode refer to?
Peak Inverse Voltage, the maximum reverse bias (inverse) voltage that can be applied to the diode without damaging or destroying it.
The work "peak" is used to remind you that when using the diode to rectify AC (or arbitrary waveforms) you must use the peak voltage, not the RMS voltage.
What happens when a Diode is in reverse breakdown?
Normally,the reverse current is so small that it can be neglected.If the external reverse-bias voltage is increased to a value( 50 V or larger) ,at this stage the reverse breakdown occours
Molecule with a positive end and a negative end?
Polar molecules have partial negative and partial positive charges on opposing sides. They have a net dipole as a result of the opposing charges.
How do you determine the collector and emitter terminals of a phototransistor?
Answer: First you have to find the Base, with your millimeter set to diodes play around with the probes between the three pins until you get a reading between one pin to both the other two pins that pin will be your Base, if your red probe is on that pin then it is a NPN transistor, if it is the black probe then it is a PNP, there will be a slight difference in the reading, the pin with the smallest reading will be the Collector and the larger is the Emitter
If you add an extra bulb to your series circuit what will happen to the brightness of the bulbs?
The bulb is dim.Because,the voltage is drops in series connection so you add more bulbs in series the last bulb got low voltage that reason for the bulb is dim
Explain the generation and recombination of electrons and holes in semiconductor?
Simply, the two fundamental laws are energy conservation and and momentum conservation.
What classes in high school would help you succeed as an aeronautical engineer?
To graduate from Texas A&M in 1985, I had to take: The real basics like composition, history, and government fundamentals required to get an engineering degree like calculus, physics, chemistry, engineering graphics, engineering mechanics, thermodynamics, and electrical circuits, plus some extra math and science introduction to aeronautics two semesters each of aerodynamics, structures, controls, and propulsion, one semester of mechanics of materials, numerical methods, a senior design cours/project, plus a seminar course and probably a lot more stuff that I've already forgotten. Take a look at some of the attached links to see some current programs. They look about the same.
How do you differentiate inductive loadcapacitive load resistive load which basics?
For an inductive load, the current lags the voltage by 90 degs. Hence the power factor for an inductive load is 0. For a capacitive load, the current leads the voltage by 90 degs. Hence the power factor for a capacitive load is 0. For a resistive load, the current and the voltage are in phase. Hence the power factor for a resistive load is 1.
Either the electrolyte leaks out or it develops a short across the plates.
How a pure sine wave inverter works circuit diagrams?
Filter the output with a low-pass filter whose cut-off frequency is less than 120 Hz.
That process removes the energy at harmonic frequencies from the output waveform,
leaving only the energy at 60 Hz.
Why are house lights parallel?
in parallel series if one of the light stops working also the remaining lights can work
AnswerLamps will only operate at their power when they are subjected to their rated voltage. The only way of subjecting all your lamps to the same (rated) voltage, is to connect them in parallel (because the same voltage appears across each branch of a parallel circuit).
The fact that the other lamps will continue to work if one lamp fails is a bonus!
What happens if dc supply is connected to incomer of transformer?
If a DC supply is connected to the incomer of a transformer, you effectively have a short circuit, because the DC impedance of a transformer (actually, any inductor) is quite low. You will blow something.
How to measure resistance of series combination?
When connected in series, the overall effective resistance of a bunch of individual resistors is
the sum of the individual resistances. It's always more than the resistance of any individual.
When connected in parallel, the reciprocal of the overall resistance of a bunch of individual resistors
is the sum of the reciprocals of the individual resistances. It's always less than the resistance of any
individual.
When two resistors are connected in parallel, the overall effective resistance of the pair is
(the product of the two individual resistances) divided by (the sum of the two individual resistances).
It's always less than the smaller individual resistance.
